Home / 1,189,378.49-1,640,595.77-705,601.13

Finding the Fourth Proportional to 1,189,378.49, 1,640,595.77 and 705,601.13

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Solution

The fourth proportional to 1,189,378.49, 1,640,595.77 and 705,601.13 is: 973,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,378.49 : 1,640,595.77 = 705,601.13 : x
  2. Step 2: Convert to fraction form
    1,189,378.49/1,640,595.77 = 705,601.13/x
  3. Step 3: Cross multiply
    1,189,378.49x = 1,640,595.77 × 705,601.13
  4. Step 4: Simplify right side
    1,189,378.49x = 1,157,606,220,100.24
  5. Step 5: Solve for x
    x = 1,157,606,220,100.24/1,189,378.49
  6. Step 6: Final answer
    x = 973,286.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.